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All Journal HAYATI Journal of Biosciences
Muhammad Naufal Nur
Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Development of DNA Extraction Method for Forensics Studies of Preserved Hair and Skin Samples from Sumatran Tiger (Panthera tigris sumatrae, Pocock 1929) Noviar Andayani; Andi Eko Maryanto; Muhammad Naufal Nur
HAYATI Journal of Biosciences Vol. 30 No. 5 (2023): September 2023
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.30.5.816-824

Abstract

Poaching and illegal wildlife trade present severe threats to the Sumatran tiger. The high demand for tiger body parts leads to a high number of imitations in illegal markets, complicating the morphological identification of any confiscation cases. Accurate identification is essential in legal due process, given that the national protection law only regulates Indonesia's native species. Identification using molecular approaches may overcome the problem. However, most illegally traded tiger body parts have been preserved for an extended period of time, reducing the quantity and quality of the recovered DNA. This study aimed to develop a fast and effective method to recover DNA from preserved forensic samples. The methods had been tested with several museum samples of arsenic-treated hairs and a tiger skin piece obtained from the National Research and Innovation Agency (BRIN, formerly LIPI), tiger hairs obtained from Conservation of Natural Resources Agency (BKSDA) of Bengkulu Province, and a confiscated tiger skin sample from BKSDA Aceh. The DNA was extracted using ion-exchange, salting out, and protease-based methods. The results showed that the protease-based extraction outperformed the others to yield applicable DNA isolates for PCR-based species identification by Cyt b and ND2 mtDNA partial genes from preserved samples. However, further works are still needed to recover sufficient DNA yields for sex identification.
Co-Authors Andayani, Noviar Maryanto, Andi Eko